39692440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:592

約数の個数: 64

約数和(自身を含む): 93519360

約数和(自身を除く): 53826920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 491, 860, 940, 982, 1720, 1880, 1964, 2021, 2455, 3928, 4042, 4910, 8084, 9820, 10105, 16168, 19640, 20210, 21113, 23077, 40420, 42226, 46154, 80840, 84452, 92308, 105565, 115385, 168904, 184616, 211130, 230770, 422260, 461540, 844520, 923080, 992311, 1984622, 3969244, 4961555, 7938488, 9923110, 19846220, 39692440]

約数ペア:

[(1, 39692440), (2, 19846220), (4, 9923110), (5, 7938488), (8, 4961555), (10, 3969244), (20, 1984622), (40, 992311), (43, 923080), (47, 844520), (86, 461540), (94, 422260), (172, 230770), (188, 211130), (215, 184616), (235, 168904), (344, 115385), (376, 105565), (430, 92308), (470, 84452), (491, 80840), (860, 46154), (940, 42226), (982, 40420), (1720, 23077), (1880, 21113), (1964, 20210), (2021, 19640), (2455, 16168), (3928, 10105), (4042, 9820), (4910, 8084)]